Type-writing machine.



M. KLACZKG. TYPE WRITING MGHLHE. APPLomIoN FILED MM al, m7,

91 3,215. Paented Feb. 23, 1909.

UNITED STATES MAX KLACZKO, OF RIGA, RUSSIA.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Feb. 23, 190e.

Application filed May 31. 1907. Serial No. 376,527.

To all wlwm 'it may concern:

Be it known that I, MAX Kincziio, a subject of the Emperor of Russia,and resident ofJ 19 Scheunenstrasse, Riga, in the Empire of Russia, haveinvented certain new and useful Improvements in Type-Writing Machines,of which the following is an exact specification.

My invention relates to an improvement in typewriting machines of anymake and in particular re ers to a stop and rebounding arran mentattached to the type bars.

In t e class of machines, commonly in use, the type bars are free tostrike with full force upon the aper, and in consequence an uncleanblottedj type impression is made whenever the bar is struck too hard.Moreover sharp edged letters, as for instance e, o and i are cut rightAthrough the paper.

.Another disadvantage has been found in the slow return motion of thetype bar, which means a loss of time and practically reduces the workingspeed of machines. Attempts have been made to do awajuwith the firstmentioned drawback by placing a fixed stop in the path of the movingtype bar, and making said type bar shortly before touching the paper rststrike against the stop. Such arrangements however producequite a noise,which sides, they do not accelerate the return motion of the type bars.

It is therefore the object of the present invention to overcome bothdrawbacks inentioned and for this purpose I provide for a stopperarrangement, which at the same time acts as a rebounding device.

The-invention consists in a eculiarly bent springattached to each typear, the curved part of which spring projects beyond the type face andthus strikes against a fixed stopv shortly before the ty e touches thepaper. The spring is rovi ed with adjusting means to regulate tieadvanced position of the projecting part in relation to the position ofthe typeface.

Whenever a type bar is moved, the advanced projecting part of the springstrikes 'first against the fixed sto Thus the spring takes up theprincipal low and acts as a buffer. On account of' the weight of themoved type bar'tlie latter overcomes to aV certain extent the force ofsaid sprin stopping its forward motion a d due to t is inertia the typebar is moved forward until is .very objectionable and bethe type touchesthe paper. In this way the type touches the pa er with just enough forceto make a good) and clean impression and this the more inasmuch as the.adyvanccd position of the bent portion of the spring in relation to theface of the type can be regulated to a iiicety by the operator himself.The forward move of the heavy type which in turn imm iately after theimpression of the type on the paper causes .the type bar to return toits starting position with an accelerated motion.

All the disadvantages as observed on prior constructions of type barsare hereby avoided. A cutting through or a blotting of sharp edgedletters is erfectly avoided, -the objectionable noise re uced and due tothe accelerated return motion of bar` the Working speed of the machineconsiderably increased. l

In order to make my invention better un, 'derstood I accompany same by adrawing in which- Figure 1 represents a type bar constructed accordingto my invention and illustrated in its non-operative position. Y WhereasFig. 2 illust-rates the type bar in a position, where the type touchesthe paper.

0n this drawing 1 represents th'e type bar pivoted at 1l1 on rod 1b.projecting beyond the pivoting point is .attached to the actuating rod1, which puts the bar in motion whenever the key connected to saidmember is struck. To the long arm and near the type block of the bar 1 aspring F is firmly attached at 2. The other free end of said spring isbent in the form of a hook. The bent portion 3 of this hook projects acertain length beyond the face edge of the t pe, whereas'the straightpart 3 of the hoo points in the opposite direction and is made longenough to project beyond the outer edge of the t pe bar 1. Thisprojecting part is threads and provided withtwo small nuts 4. B means ofthese nuts the advance position o the bent portion 3 of the spring isr'e lated. A represents a fixed plate provide with a projection A1 ata'suitable lace, against which the 'bent ortion 3 of .t e spring Fstrikes as shown in Fig. 2.

The Aoperation of the device illustrated and described is as follows:When the bar is in the position shown in Fig.- 1 and a key bar bringsthe sprin under a certain tension The short arm in connection with rod 1is struck, said rod makes a motion 1n a downward direction and therebycauses the long arm 1 of the type bar to make an upward motion. Inasmuchas the bent portion 3 ofI the spring F affixed to the arm 1 is thus setby nuts 4, that said portion 3 is positioned somewhat ahead of the faceof the type fixed to the outermost end of arm 1, that portion 3 is boundto strike first against the projection A1 of the fixed plate A, andinasmuch as it forms a part of a resilient spring must 've way to acertain extent and allow for a urther movement of the arm 1 due to thelatters Weight and inertia of motion. This condition is shown in Fig. 2,in which position the type just touches the paper. The spring F comesunder tension by this action and in turn causes the bar 1 to make itsreturn motion with accelerated velocity.

I do not limit'myself to the sha e of the spring F as illustrated anddescri d, said spri may have any convenient form to suit e pur ose.

vided which being attached to the moving type bar strike against a fixedpro'ection prlor to the touching of the paper y the t pe face and due totheir resiliency cause e type bar after the impression has taken placeto return to its starting position with accelerated motion.

Having thus fullyV described the nature of my invention what I desire tosecure by Letters Patent of the United States is 1. In combination witha type writer, bu'er means foreach type bar comprising a springprojectingfrom and firmly attached with lts one end to the type bar andhaving its free end bent round, a stop on the machine frame cooperatingwith the bent portion ofsaid springand mean's for adjusting the amountof projection of said spring,

The principal feature of the invention lies in' the fact, that resilientmeans are prosubstantially as pose set forth.

2. In combination with a type writer buffer means for each type barcomprising a spring firmly attached t e t pe bar and having its free endbenl roun said round portion forming a bovc projecting over the faceedge of the type attached tothe end 'of the bar, and a stop on a machineframe coperating with sai( spring substantially as described and for thipurpose set forth.

3. In combination with a type writer buf fer means for each t pe barcomprising x s ring firmly attached with-its one' end t4 t e t pe barand having its free end ben roun 1n form of a bow and projecting ove:the face edge of the ty e attached to the ent of the bar, and an engportion adjacent t the bow provided with adjusting means fo theadvanceposition of the bow and a sto] on the machine frame co eratingwith sail spring substantially as described and fo the purpose setforth.

4. I'n combination with a type writer bui fer means for each type barcomprisin t spring firmly attached with4 its one en t the t pe bar andhaving its free end ber roun 1n form of a hook, the bow portion c whichprojects over the face edge of the ty attached to the end of the bar,and th strai ht end portion being threaded and pr( vide with nuts toadjust the advance pos tion of the bow and a fixed stop on a mi chineframe coperating with said sprin substantially as described and for thepu? pose set forth.

In witness whereof I have' hereunto S my hand in the presence of twowitnesses.

MAX KLACZKO.

described and for the pur- Witnesses:

LAURANCE HILL, H. Rasxmn.

with its one end tc

